Quick answers
- Which hospitals does Robert M. Matz work at?
- Medicare's official clinician data lists Robert M. Matz at 3 hospitals: California Pacific Medical Center- Van Ness Campus, Chinese Hospital and Marinhealth Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert M. Matz see patients?
- Medicare's clinician data lists 2 practice locations, including Sonora, CA and San Francisco, CA. Call before your visit to confirm the address.
- What is Robert M. Matz's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Robert M. Matz accept Medicare assignment?
- Medicare's clinician data says Robert M. Matz may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Robert M. Matz?
- (209) 536-5000, as listed in official Medicare / NPI Registry data.
- What is Robert M. Matz's NPI number?
- 1558503086. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert M. Matz works
Medicare's Facility Affiliation Data lists Robert M. Matz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA · Acute Care Hospital · CCN 050047
- Chinese HospitalSan Francisco, CA · Acute Care Hospital · CCN 050407
- Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · CCN 050360
Practice locations
Addresses where Robert M. Matz is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Greenley RdSonora, CA 95370 (209) 536‑5000
- 845 Jackson StSan Francisco, CA 94133 (415) 779‑8868
Group practices
Medicare enrollment lists Robert M. Matz as a member of these groups (CMS data updated 2026-10-02).
- Galen Inpatient Physicians PC1,077 clinicians in the group
- San Francisco Unified Physicians Group, Inc19 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Sonora
Clinicians with the same Medicare primary specialty in Sonora, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Nevada School Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1558503086 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians